Which teacher exhibited the most variable year-to-year performance over this 5 year span?

Asked by wiki @ 27/10/2020 in Mathematics viewed by 567 People

Answered by wiki @ 27/10/2020

Answer-

Ed exhibited the most variable year to year performance over this 5 year span.

Solution-

Most variable performance means varying performance or non-consistence performance.

As shown in the graph,

Jill's performance was constant throughout 2005-07.

Ralph's performance was constant throughout 2006-07 and also in 2008-09.

Tina's performance was constant throughout 2007-09

Sam's performance was constant throughout 2008-09.

All of them has been consistence for at-least once. But, in case of Ed, throughout the time, his performance was in-consistence or variable.

Valley company’s adjusted trial balance on august 31, 2017, its fiscal year-end, follows.

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A decrease in variability leads to an increase in what

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